Dear ILRS Community,

The CDDIS and EDC plan to make several directory structure changes on May 14, 2024 to provide a clearer and more consistent layout for the ITRFs and station files. Below is a summary of the changes that will be implemented.

For the ITRF, we want to ensure that the different versions are grouped together clearly and will implement the following structure.

REPRO_SERIES

REPRO2008

… individual files in usual archive by year, month, etc.

REPRO2014

… individual files in usual archive by year, month, etc.

REPRO2020

… individual files in usual archive by year, month, etc.

Current Directory	Proposed Change
/slr/products/REPRO_SERIES/	None
/slr/products/REPRO_SERIES/REPRO2020/	None
/slr/products/REPRO_SERIES/REPRO2020/YYMMDD/	None
/slr/products/itrf2014/YYMMDD/	/slr/products/REPRO_SERIES/REPRO2014/
/slr/products/ilrs2014_individual_ac_sinex/YYMMDD/	/slr/products/REPRO_SERIES/REPRO2014/
/slr/products/resource/ITRF2008slr_sample/	/slr/products/REPRO_SERIES/REPRO2008/
/slr/products/resource/reanalysis_2007/	/slr/products/REPRO_SERIES/REPRO2008/
/slr/products/test/itrf2014_2_itrf2013/YYMMDD/	/slr/products/REPRO_SERIES/REPRO2014/
/slr/products/test/itrf2013/YYYMMDD/	/slr/products/REPRO_SERIES/REPRO2014/
/slr/products/test/itrf2013p_eval/	/slr/products/REPRO_SERIES/REPRO2014/
/slr/products/test/reanalysis2014/YYMMDD/	/slr/products/REPRO_SERIES/REPRO2014/

Additional directory changes include:

Current Directory	Proposed Change
/slr/slrlog/	/slr/slrlog – site log /slr/slrhst – history log files
/slr/slrocc/	/slr/slrocc/ - occupation files /slr/slrecc/ - eccentricity files
/slr/slrscf/	/slr/slrhst/schsci/

Thank you!

-Justine

Justine Woo (she/her)

Chief Scientific Programmer/Analyst

Science Systems and Applications, Inc. (SSAI)

Software Developer, SCRUM Master

Data Center Representative, ILRS Governing Board

Crustal Dynamics Data Information System (CDDIS)

NASA GSFC, Code 61A

Greenbelt, MD 20771, USA

justine.y.woo@nasa.gov